Best Adjustable length Pilot Counterbore

uxcell Knurled Insert Nuts, M8 x 10mm(L) x 10mm(OD) Female Thread Brass Embedment Assortment Kit, 5 Pcs

[SIZE] - M8x1.25mm thread size, 0.39" (10mm) long, 0.39" 10mm outer diameter ,OD tolerance: +0.02"/0"..
[MATERIAL] - Made of brass, rust resistance, good thermal conductivity and heat resistance, can ensure long time using..
[FEATURE] - Can be installed by ultrasonic or heat into thread tapered hole, or in during injection..
[ADVANTAGE] - No need to counterbore or countersink the boss hole since the insert has guide pilot..
[APPLICATION] - Widely used on injection for fastening..

High Speed Steel. Straight Shank. Metric Set(7 Pcs/Set): M3, M4, M5, M6, M8, M10, & M12.
Cap screw counterbores are tools that are used to create a recess in a workpiece for the head of a cap screw. You might use a cap screw counterbore when you need to attach a component to your workpiece using cap screws, and the component has a thickness that is greater than the length of the cap screw..
Another reason you might use a cap screw counterbore is if you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece. A cap screw counterbore allows you to create a recess in the workpiece that is sized to fit the head of the cap screw, giving the screw a flush or countersunk appearance..
Overall, cap screw counterbores can be useful when you need to attach components to a workpiece using cap screws, or when you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece..

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
Round shanks allow use with a wide variety of toolholding systems.
Counterboring is the enlargement of a portion of a hole that has previously been formed.
The counterbor is a two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.

Drill, countersink and counterbore in one step with this drill bit.
Four-cutter countersink and tapered drill bits for wood, metal and plastic provide superior speed and ideal finish.
Replacement tapered bits offered for DEWALT drill bits.
Drill, countersink and counterbore in one step.
Four-cutter countersink and tapered drill bit provide superior speed and ideal finish.

6 Pieces Set:5PCS round shank drill bits for drilling pilot holes for screw.
sizes#6 #8,#10,#12 and #14 and 1 hex wrench..
Special Designed: HSS steel counter sleeve countersinks & counter bores pilot hole, adjustable counter sleeve depth with allen wrench..
Very Sharp : Super sharp cutting flute clears chips efficiently and leaves a clean & smooth hole..
Easy to Use: Adjustable drills length for various length screws simply by loosening and tightening the screw..
Function: Pre-drilling and countersink to drive screws flush with the material surface or deep hole counter boring for driving screw heads below the surface..

Package: The package includes 20 pieces in total. 10 Pieces slow pilot jet and 10 pcs main jet..
Specification: The size of the 10pcs main jets are 100, 105, 108, 110, 115, 120, 125, 130, 135, 140 . And the size of the 10pcs slow pilot jets are 32, 35, 38, 40, 42, 45, 48, 50, 52, 55.
Dimension: The overall length of the main jet is 16.5mm, the thread length is 5mm, the cap length is 11.5mm. The ptich is 5mm*0.8mm and the net diameter is 6mm. The overall length of the slow pilot jet is 28mm, the thread size is 6mm*0.75mm, teh nut diameter is 5mm..
Application: These main jet and slow pilot jet kit can be used on Keihin, FCR, KOSO, OKO, PWK, PE and some special version carburetor..
Warranty: 100% satisfaction. These main jet and slow pilot jet kit are totally brand new. If you need any assists during usage, feel free to ask..

... duty compact pocket hole jig can be held by one hand, designed for portable or desktop installation, very suitable for DIY household projects or professional and general commercial use. DIY craftsmen use this fixture kit to build their own woodworking projects.
Simple and easy to use: Use a jig to drill an inclined counterbore in a joint. Then, screw the self-tapping screw (without pilot hole) into another part, and easily and quickly drill the inclined hole to hide the screw in the wooden furniture to form a precise woodworking hole to create or repair the wood joint.
15 drill angle, 2-way tilt, to ensure accurate screw connection, and then embed the screw to prevent the screw from hiding. Allows you to easily hide screws/fasteners. The 10mm drill bit adapter can be easily replaced according to different sizes of wood types, positions and angles. Sharp drills with excellent performance, work smoothly and efficiently without burrs.
Complete pocket hole fixture system-fixture kit includes::1* pocket hole jig with clamp1* Step Drill Bit (replaceable)1* screwdriver (replaceable)1*steel stop collar1* square drive bit2* drivepipe1* Hex wrench 1* 6 in square drive bit20 coarse square drive screws20 fine square drive screws.